Question: What are the {signs} that {led to} {Aldrin}?
Paraphrase: What are the {signs} that {driven to} {Aldrin}?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q409054 wdt:P1542 ?X . ?X wdt:P780 ?answer}
Answer: headache, myoclonus, vomiting, coma, Nausea, hematuria, azotemia, convulsion, malaise, dizziness